Angle-gage.



M. J. PALMER.

ANGLE GAGE.

APPLICATION FILED PREA, 1913.

l, 1 27,802., Patented F6119, 1915.

ATTORNEY THE NDRRIS PETERS CO.. PHOTG-LITHQ., WASHING rnN D Ariens-GAGE.

inet/,soa

Application filed February 3, 1913.

T0 all whom it may concern:

Be it known that I, MARTIN J. PALMER, citizen of the UnitedStates, residing at Seattle, in the county of King and State o' 1Washington, have invented a certain new and useful Improvement in Angle-Gages, of which the following is a specification.

My invention relates to improvements in adjustable angle gages that are adapted to determine the angular relation between two sides or surfaces of a body, and the object of my improvement is to provide a gage that shall be adapted to be adjusted quickly and with accuracy to any desired angle and which shall be simple in construction and operation. I attain this object by devices illustrated in the accompanying drawings, wherein- Figure l is a view in :iront side elevation of a gage embodying my invention, Fig. 2 is a view in rearward elevation of the same, Fig. 3 is a view of a section of the same on broken line of Fig. 2, Fig. -t is a view in cross-section of a detail of the same, and Fig. 5 is a view in perspective of another detail thereof.

Like reference numerals indicate like parts throughout the drawings.

Referring to the drawings, 6 is a frameplate having parallel edges 7 and 8 respece tively one end of which frame 6 is rounded as shown. Adjacent to the rounded end of said frame-plate 6 and concentric therewith is bored a circular and tapered hole or opening within which is fitted a circular dialplate 9 whose iorni is more clearlv shown by a view in transverse section in Fig. 4. The said dial-plate 9 is provided with a semicylindrical bss l0 on its underside which is slotted in a plane parallel with the bottoni surface of said dial-plate 9 to provide a recess 11 within which may be disposed a rule or gage-blade 12 that is adapted to move endwise within said recess l1. One side of said gage-blade 12 is provided with a V shaped groove 13 extending throughout its length.

A hole 14 is drilled lengthwise of the boss 10 which is adapted to receive a screwthreaded clamp l5 whose form is more clearly illustrated in Fig. 5. Said clamp y15 'is provided with a guide pin whose ends 16, 16 are disposedto fit and move ina slot 17 formed in the dial-plate 9 at a point near the inner end of the boss l0, (as shown in Figs. 3 and e) when said clamp l5 is disposed specieeauon of Letters raient Patented Feb. 9, 191.5.

serial no. 745,730.

within hole le in which position an angular projection 18 on said clamp i5 may engage with the groove 13 oit the gage-blade l2 as more clearly shown in Fig. 3. rlhe screwthreaded portion of the clamp l5 projects outwardly i'roni the hole lt into a semi-circular opening 19 in the dial-plate 9 and such screw-threaded portion is provided with a milled nut20 which is adapted to control the lengthwise position of the clamp l5 and its angular projection 18 whereby the gage blade l2 may be clamped tight by being drawn with greater pressure against the bottom of the recess 11 by the action oi' the angular projection 18. r he milled nut 2O is counterbored on its inner end and within the recess thus formed is disposed a compressible spiral spring 2l which may serve as a frictional device to prevent the milled nut 2O from turning too freely. rifhus the gage-blade l2 may be moved endwise within the recess ll. to any desired point, when the milled nut ./O is loosened, and be securely fastened at such point by turning the milled nut 20 to force the angular projection 18 to clamp the gage-blade 12 in an obvious manner..

The dial-plate 9 on its front side is provided with a scale indicating the degrees of its circle from a Zero point to a distance of ninety degrees on each side of such zero point, as shown in Fig. l, and upon the front side of the trarne-plate 6 is a Zero mark 22 at a point midway between the edges 7 and 8, extending to the edges of the dial-plate 9, and a 90 degree mark 23. 23 on each side of the Zero mark 22 at a distance of 90 degrees as shown.

The dial-plate 9 is retained within its conical seat by binding screws 24, 24 and a wedge shaped clamping device 25 disposed on the rear side of the frame-plate 6 as shown in Fig. 2. The wedge shaped clamping device 25 is provided with a screw threaded shank 26 which extends through a boss 27 of semi-cylindrical form which projects from the frame-plate 6. as indicated in Fig. 2, but more clearly illustrated in Fig. 3. A milled nut 28 is adapted to fit said screw threaded shank 26 and by its operation the wedge shaped clamp 25 may be drawn within the boss 27 to force the clamping device 25 downwardly upon the surface of the dial-plate 9 to securely fasten such dial-plate 9 in any desired position whereby the gageplate 12 may be disposed Copies of this patent maybe obtained for ve cents each, by addressing the Commissioner of Iatents.Y

at a desiredangle with respect to the edges 1 the gage-blade 12 to enable one to determine the angular position of an object with respect t o any point on a horizontal line.A

Obviously to operate an angle gage emA bodymg my invention, one would loosen the milled nut -to permit the. gage-blade l2- to be moved endwise to a desired position and thereupon. turn said milled nut`20 to clamp the said gage-bladelQ with its edge tast against the recess 11, then the milled nut 28 would be loosened tofree the wedge `shaped clamping device 25, thus to permitl the dial-plate 9 to be turned to a desiredk angle ,which angle might be determined by the scale on the dial-plate 9 whereupon the milled nut 2S would be turnedto cause the clamping device to press against the dial-plate 9 to secure it in its tapered seat, the screws 24. in their fixedy position being adapted to permit the dial-plate 9 to beturned only when the clamping device 25 isfloose.

Manifestly the parts of a structure embodying inv invention may be modified with respect to form and dimensions without departing from the spirit thereof. y

' What I claim is: f

' l. In anr angle gage, the combination with a frame-plate having a tapered circular opening, of a dial-plate peripherallv beveled to. rotate Within said opening and formed with a slot, a gage-blade having. a longigi tudinal groove,` and means for clamping said blade in adjusted position vwith relation to the dial-plate, comprising a boss on said dial-plate formed with a recess to receive said blade, a threadedclamp having a pinguided in the slotin the dial-plate, and a transverse projection itting the groove insaid blade, and vanuton the threaded end of said clamp.

2. In an angle gage, the combinationwith a frame-plate having a tapered circular opening, of a dial-plate rotatably fitting within said opening and provided with a hollow boss, argage-blade longitudinally adjustable on said plate, means for clamping said blade in adjusted position with relation to said dial-plate, and means for securing saidv dial-plate to said yframe plate coinprising binding-screws extending into said frame-plate, and a clamping devicevconsisting of a wedge engaging the dial-plate and having a'threaded extension extending through said hollow boss, and a clampingnut on said threaded extension.

In witness whereof, I, hereunto subscribe niy naine this seventeenth day of January A, D., i913.

. MARTIN J. PALMER;

lVitnesses Y ANNA Haskins, GEO. BLAIR.

Washington. D. G. 

